<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<title>Source code</title>
<link rel="stylesheet" type="text/css" href="../../../../stylesheet.css" title="Style">
</head>
<body>
<div class="sourceContainer">
<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2014 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: JFieldType.html 671 2015-01-17 15:50:55Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.jsimpledb.annotation;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.lang.annotation.Documented;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import java.lang.annotation.ElementType;<a name="line.11"></a>
<span class="sourceLineNo">012</span>import java.lang.annotation.Retention;<a name="line.12"></a>
<span class="sourceLineNo">013</span>import java.lang.annotation.RetentionPolicy;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import java.lang.annotation.Target;<a name="line.14"></a>
<span class="sourceLineNo">015</span><a name="line.15"></a>
<span class="sourceLineNo">016</span>/**<a name="line.16"></a>
<span class="sourceLineNo">017</span> * Java annotation for classes that define custom {@link org.jsimpledb.core.FieldType}s<a name="line.17"></a>
<span class="sourceLineNo">018</span> * for a {@link org.jsimpledb.JSimpleDB}'s underlying {@link org.jsimpledb.core.Database}.<a name="line.18"></a>
<span class="sourceLineNo">019</span> * These classes will be automatically instantiated and registered with the<a name="line.19"></a>
<span class="sourceLineNo">020</span> * {@linkplain org.jsimpledb.core.Database#getFieldTypeRegistry associated}<a name="line.20"></a>
<span class="sourceLineNo">021</span> * {@link org.jsimpledb.core.FieldTypeRegistry}.<a name="line.21"></a>
<span class="sourceLineNo">022</span> *<a name="line.22"></a>
<span class="sourceLineNo">023</span> * &lt;p&gt;<a name="line.23"></a>
<span class="sourceLineNo">024</span> * Annotated classes must extend {@link org.jsimpledb.core.FieldType} and have a zero-parameter constructor.<a name="line.24"></a>
<span class="sourceLineNo">025</span> * &lt;/p&gt;<a name="line.25"></a>
<span class="sourceLineNo">026</span> *<a name="line.26"></a>
<span class="sourceLineNo">027</span> * &lt;p&gt;<a name="line.27"></a>
<span class="sourceLineNo">028</span> * Note that once a certain encoding has been used for a given type name in a database, the encoding should not<a name="line.28"></a>
<span class="sourceLineNo">029</span> * be changed without creating a new type (and type name), or changing the<a name="line.29"></a>
<span class="sourceLineNo">030</span> * {@linkplain org.jsimpledb.core.FieldType#getEncodingSignature encoding signature}.<a name="line.30"></a>
<span class="sourceLineNo">031</span> * Otherwise, {@link org.jsimpledb.core.InconsistentDatabaseException}s can result when the new type unexpectedly<a name="line.31"></a>
<span class="sourceLineNo">032</span> * encounters the old encoding or vice-versa.<a name="line.32"></a>
<span class="sourceLineNo">033</span> * &lt;/p&gt;<a name="line.33"></a>
<span class="sourceLineNo">034</span> */<a name="line.34"></a>
<span class="sourceLineNo">035</span>@Retention(RetentionPolicy.RUNTIME)<a name="line.35"></a>
<span class="sourceLineNo">036</span>@Target(ElementType.TYPE)<a name="line.36"></a>
<span class="sourceLineNo">037</span>@Documented<a name="line.37"></a>
<span class="sourceLineNo">038</span>public @interface JFieldType {<a name="line.38"></a>
<span class="sourceLineNo">039</span>}<a name="line.39"></a>
<span class="sourceLineNo">040</span><a name="line.40"></a>




























































</pre>
</div>
</body>
</html>
